A number of model solutions prepared according to GOST 31869-2012 were analyzed under the selected conditions to determine the recovery of the target and interfering components using the sample preparation procedure recommended by the GOST. The recovery of alkylamines with the water steam was 77–85% over the entire range of their concentrations from 0.25 to 5 mg/L, which is consistent with the data for triethylamine (90%) [12]. It was found that the saline background of the sample up to 1.5 g/L did not affect the recovery of alkylamines. Under the recommended conditions of sample preparation, the coextraction of potentially interfering components, such as metal cations and nitrogen organic compounds with the high MPC values, listed above, was also examined. It was found that, under these conditions, the recovery of alkanolamines did not exceed 10%. For diethylenediamine and triethylenediamine, the recovery was less than 5%; for metal cations, it was less than 1%. A typical electropherogram of a model mixture of alkylamines after water steam distillation is shown in Fig. 1.